/**
* Creates a polygon that stems from the latitude and longitude provided
*
* @param integer $lat Reference latitude in degrees
* @param integer $long Reference longitude in degrees
* @param integer $maxRadius Units away from the reference cordinates
* @param integer $verts Number of vertices required
* @param boolean $openEnded If true, the polygon is not closed
*
* @return array List of polygon points
*/
public function makePolygon($lat, $long, $maxRadius = 1, $verts = 4, $openEnded = false)
{
/* Ensure the vertices are more than 1 */
if ($verts < 2) {
throw new GeneratorException("The number of vertices specified is too low", GeneratorException::ERR_TOO_FEW_VERTICES);
}
$theta = 360 / ($openEnded ? $verts + 1 : $verts);
$currentAngle = 0;
$collection = new Collection([]);
/* We are going to generate these point clockwise */
for ($p = 1; $p <= $verts; $p++) {
// Generate the "r" from this point
$r = mt_rand(1, 10) / 10;
// Normalize to between 0, 1
$currentAngle += $theta;
$newLat = $lat + ($r * cos($currentAngle) + $maxRadius);
$newLng = $long + ($r * sin($currentAngle) + $maxRadius);
$collection->add(new Location($newLat, $newLng));
}
return $collection;
}
